English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Tools annual

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Presents the access of premium content as premium feature

Premium Content

Global: Zendy Plus annual

Global: Zendy Free Plan

Near-Earth space continues to be the focus of critical services andcapabilities provided to the society. With the steady increase of spacetraffic, the number of Resident Space Objects (RSOs) has recently boomed in thecontext of growing concern due to space debris. The need of a holistic andunified approach for addressing orbital collisions, assess the global in-orbitrisk, and define sustainable practices for space traffic management has emergedas a major societal challenge. Here, we introduce and discuss a versatileframework using the complex network paradigm to introduce indices for spacesustainability criteria. Based on neighbouring relationships, we introduce theResident Space Object Network (RSONet) by connecting RSOs that experiencenear-collisions events over a finite-time window. The structural collisionalproperties of RSOs are thus encoded into the RSONet and analysed with the toolsof network science. We formulate a geometrical index highlighting the key roleof specific RSOs in building up the risk of collisions with respect to the restof the population. Practical applications based on Two-Line Elements andConjunction Data Message databases are presented.

The Resident Space Objects Network: a complex system approach for shaping space sustainability